JPH08331715A - Gas-insulation switching device - Google Patents

Abstract

PURPOSE: To provide a gas insulation switching device in which the depth dimension of a bus-bar section unit can be made equal to that of a feeder unit. CONSTITUTION: A bus-bar section unit Ubs1 is constituted of a breaker element B10 in which a breaker CBs1 is contained in a breaker container Vb10 , a bus-bar disconnector element B11 in which a bus-bar conductor and a disconnector DS11 are contained in a bus-bar container Vb11 and a bus-bar disconnector element B12 in which a bus-bar conductor and a disconnector DS12 are contained in a bus-bar container Vb12 . The containers Vb11 and Vb12 of the bus-bar disconnector elements B11 and B12 are directly connected to the breaker container Vb10 .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas insulated switchgear having a two-line power receiving double bus structure.

[0002]

2. Description of the Related Art A gas-insulated switchgear having a two-line power-receiving double bus bar structure, for example, as shown in FIG.
To separate the first feeder unit Uf1 for connecting the first bus unit BUS1 and the second bus unit BUS2 to the first bus unit BUS2 and the second feeder unit Uf2 for connecting the second cable L2 to the first bus line BUS1 and the second bus line BUS2. It includes a busbar division unit Ubs1, an Obusbar division unit Ubs2 that divides the Obusbus BUS2, an A busbar connection unit Uc1, and an Obusbus connection unit Uc2.

The first feeder unit Uf1 is a first feeder circuit breaker in which a first feeder circuit breaker CBf1 and a cable head CHD1 to which the terminal of the cable L1 is connected are housed in a common container Vf10. Element F10,
A first feeder busbar disconnector element F11 which is housed in a busbar container Vf11 together with a busbar disconnector DSf11 that opens and closes between the busbar bus BUS1 and the circuit breaker CBf1. The first feeder O-bus disconnector element F for the feeder, which accommodates the O-bus bus BUS2 constituting the O-bus bus conductor together with the O-bus bus disconnector DSf12 that opens and closes between the O-bus bus and the circuit breaker CBf1.
It is composed of 12.

The second feeder unit Uf2 is a second feeder circuit breaker in which a second feeder circuit breaker CBf2 and a cable head CHD2 to which the terminal of the cable L2 is connected are housed in a common container Vf20. Element F20,
A second feeder upper busbar disconnector element F21 that is housed in a busbar container Vf21 together with a busbar disconnector DSf21 that opens and closes between the busbar BUS1 and the circuit breaker CBf2. A second feeder O-bus line disconnector element F for storing the bus-bar conductor constituting the O-bus line BUS2 in the bus-line container Vf22 together with the O-bus line disconnector DSf22 for opening and closing between the O-bus line and the circuit breaker CBf2.
It is composed of 22 and.

The upper busbar section unit Ubs1 includes an upper busbar section circuit breaker element B10 in which an upper busbar section circuit breaker CBs1 is housed in a container Vb10, and a busbar conductor b11 on one side of a partition point of the upper busbar bus BUS1. Bus conductor b11 and breaker CBs1
The upper busbar disconnecting switch element B11 for separating the upper busbar and the busbar conductor b on the other side of the dividing point of the upper busbar together with the upper busbar disconnecting switch DS11 for opening and closing between
A lower busbar disconnecting switch element B12 for partitioning the upper busbars which is housed in a busbar container Vb12 together with a busbar disconnecting switch DS12 for opening and closing 12 between the busbar conductor and the circuit breaker CBs1.

The O-busbar section unit Ubs2 includes an O-bus bar-line breaker CBs2 housed in a container Vb20 and an O-bus line breaker element B20 and a bus bar conductor b21 on one side of the O-bus line BUS2. The bus conductor b21 and the circuit breaker C
An upper busbar disconnecting switch element B21 for O-busbar division which is housed in a busbar container Vb21 together with a busbar disconnector DS21 that opens and closes between Bs2 and a busbar conductor b22 on the other side of the division point of Otsubusu BUS2. It comprises a busbar disconnector DS22 which opens and closes between the conductor b22 and the circuit breaker CBs2, and a second busbar section lower disconnector element B22 housed in a busbar container Vb22.

The upper busbar connecting unit Uc1 has a connecting conductor c1 housed in a container Vc1 and is composed of a lower busbar disconnector element B12 for upper busbar section and a busbar conductor b12 of a first feeder upper busbar disconnector element F11. Between the busbar conductor, the upper busbar section unit Ubs1 and the first feeder unit U
Connect on the back side of f1.

Also, the Otomobus connecting unit Uc2 is a container Vc2.
The connection conductor c2 is housed in the space between the busbar conductor b22 of the lower busbar disconnector element B22 for Otobusbar section and the busbar conductor of the second feeder Otobusbar disconnector element F22 for the O-busbar section unit Ubs2. And the rear side of the second feeder unit Uf2.

In this specification, the front surface of each unit means the surface on which the operating device box is arranged (the front surface of the operating device), and the rear surface of each unit is the side connected to the operating device box of each unit. And the opposite side. The front surface of each container means the side surface facing the front surface side of the unit, and the back surface of each container means the side surface facing the back surface side of the unit.

9 to 14 show the structure of a conventional gas-insulated switchgear having the structure shown in FIG.
FIG. 9 is a side sectional view showing a cross section of the upper busbar section unit Ubs1, and FIG. 10 is a side sectional view showing the first feeder unit Uf1 and the upper busbar connecting unit Uc1. 11 is a rear view showing the first feeder unit Uf1, the upper busbar connecting unit Uc1 and the upper busbar section unit Ubs1, and FIG. 12 is a side view showing the second feeder unit Uf2 and the second busbar connecting unit Uc2. Sectional view, FIG.
Is a side cross-sectional view showing the Otobusbar section unit Ubs2, Fig. 1
4 is the Otomobus section unit Ubs2 and Otomobus connection unit U
It is a rear view showing c2 and the second feeder unit Uf2. 9 to 14, parts corresponding to the respective parts in FIG. 8 are designated by the same reference numerals as those in FIG.

As is apparent from FIG. 9, in the conventional bus-insulated switchgear unit Ubs1 of the gas insulated switchgear, the container Vb12 of the lower busbar disconnector element B12 is connected to the connection container Vb1.
3 is connected to the lower rear surface of the container Vb10 of the circuit breaker element B10, and between the circuit breaker CBs1 and the busbar disconnector DS12, the connection conductor d1 and the container Vb1 housed in the container Vb10 are connected.
It is connected via a connection conductor d4 arranged in the inside 3. Further, the circuit breaker CBs1 and the busbar disconnector DS11 are connected via a connecting conductor d2 housed in the container Vb10. In FIG. 9, Vb14 is a container in which the busbar conductors of the passing busbars (Otsubusu) are stored.

Further, as is apparent from FIG. 13, in the O-bus line section unit Ubs2 of the conventional gas-insulated switchgear, the container Vb22 of the lower busbar disconnector element B22 is connected to the container Vb20 of the circuit breaker element via the connection container Vb23. The container Vb2 is connected between the circuit breaker CBs2 and the disconnector DS22.
It is connected through the connection conductor d1 housed in 0 and the conductor d4 housed in the connection container Vb23. Also, the disconnector DS of the circuit breaker CBs2 and the upper busbar disconnector element B21.
It is connected to 21 via a connecting conductor d3 housed in a container Vb20. In FIG. 13, Vb24 is a container in which the busbar conductor of the passing busbar (instep busbar) is housed.

A current transformer CT is attached to the connection conductor d4 housed in the connection vessels Vb13 and Vb23 of the busbar section units Ubs1 and Ubs2, respectively.

Further, in FIGS. 9, 10, 12, and 13, Pb1, Pf1, Pf2, and Pb2 are operating device boxes arranged on the front surface of the unit, and these operating device boxes include a circuit breaker and a disconnector. The operation unit and operation panel for operating the unit are stored.

In the examples shown in FIGS. 9 to 14, insulating spacers S are arranged at the essential portions of the connecting portions between the containers, and SF ₆ gas is enclosed in each container.

FIG. 15 and FIG. 16 show other examples of the upper busbar section unit Ubs1 and the second busbar section unit Ubs2 used in the conventional gas-insulated switchgear. In this example, the upper busbar section unit is shown. Ubs1 and Obus bus section unit Ubs2 are arranged back to back. In this gas insulated switchgear, a container Vb10 'having the same structure as the container Vb10 is arranged beside the container Vb10 of the circuit breaker element B10 for dividing the upper bus line, and the lower portions of the containers Vb10 and Vb10' are provided with a conduit V1. And the busbar vessels Vb11 and Vb12 are connected to the upper portion of the vessel Vb10 and the upper portion of the vessel Vb10 ', respectively. The busbar container Vb11 accommodates the busbar conductor b11 on one side of the dividing point of the instep busbar and the instep busbar disconnector DS11, and the busbar container Vb12 contains the busbar conductor b12 and the instep of the other side of the dividing point of the instep busbar. The busbar disconnector DS12 is stored. A connection conductor for connecting the terminal of the circuit breaker CBs1 on the side opposite to the disconnector DS11 to the disconnector DS12 is housed in the conduit V1 and in the container Vb10 '. In the upper busbar sectioning unit Ubs1, the circuit of the upper busbar BUS1 has a busbar conductor conductor b11 and a disconnector D arranged in the busbar container Vb11 as shown by the single-line connection diagram in FIG.
After being introduced into the container Vb10 through S11, the circuit breaker CBs1
Through the pipe V1 to the container Vb10
It is introduced in ´. The circuit introduced into the container Vb10 'rises up inside the container Vb10', and the busbar container V
It is introduced into the busbar container Vb12 arranged at the same height as b11, and the disconnector DS12 and the busbar conductor b12 in the container Vb12 are introduced.
Connected to.

Further, a container Vb20 'having the same structure as the container Vb20 is arranged on the side of the container Vb20 of the Otobusen section unit, and the lower part of the container Vb20 and the lower part of the container Vb20' are mutually connected by a conduit V2. It is connected. A busbar container Vb21 is connected to the upper part of the container Vb20, and a busbar container Vb22 is connected to the upper part of the container Vb20 '. Bus container Vb2
The conductor b21 on one side of the O-bus line dividing point and the disconnector DS21 for O-bus line division are accommodated in 1 and the conductor b22 and the O-bus line dividing line on the other side of the O-bus line dividing point are stored in the bus container Vb22. The disconnector DS22 is stored. Also, in the pipeline V2 and the container V
A connection conductor for connecting the terminal of the circuit breaker CBs2 on the side opposite to the disconnector DS21 to the disconnector DS22 is accommodated in b20 ′. In this Otobus section unit Ubs2,
As shown in the single line connection diagram shown by the broken line in FIG.
The circuit of S2 is introduced into the container Vb20 through the busbar conductor conductor b21 arranged in the busbar container Vb21 and the disconnector DS21, and then guided downward through the circuit breaker CBs2 to form the conduit V2.
It is introduced into the container Vb20 'through the inside. Container Vb20 '
The circuit introduced into the container rises upward in the container Vb20 'and is introduced into the busbar container Vb22 arranged at the same height as the busbar container Vb21 to disconnect the disconnector DS in the container Vb22.
22 and a bus conductor b22.

[0018]

In the conventional gas-insulated switchgear shown in FIGS. 9 to 14, a connection container V13 is provided between the lower busbar disconnector element B12 and the circuit breaker element B10 of the busbar section unit Ubs1. Connected through
Lower busbar disconnector element B of busbar section unit Ubs2
Since 22 and the circuit breaker element B20 were connected via the connection container V23, the lower busbar disconnector element B12
It was unavoidable that the distance between B22 and B22 and the actuator boxes Pb1 and Pb2 became long. Therefore, the connecting rod that connects the disconnecting switch operating device and the disconnecting switch DS12, DS22 arranged in the operating device box becomes long, or the mechanism for converting the transmission direction of the operating force becomes complicated. Therefore, it may be difficult to smoothly operate the disconnector.

Further, in the conventional gas-insulated switchgear, the lower busbar disconnector element B12 of the busbar section unit Ubs1 and the lower busbar disconnector element B of the busbar section unit Ubs2.
Since 22 protrudes further than the rear of the feeder unit, the depth dimension of the bus bar sorting unit (the distance between the front and back sides) becomes larger than the depth dimension of the feeder units Uf1 and Uf2, and the transport dimension of the bus bar sorting unit. There was a problem that the size could not be the same as the transportation size of the feeder unit.

On the other hand, when the bus bar segmenting units are constructed as shown in FIGS. 15 and 16, the depth dimension of each bus bar segmenting unit can be made the same as that of the feeder unit. However, since the width dimension W of each busbar segmenting unit is the dimension of two units, there is a problem that the width dimension of the gas insulated switchgear becomes large.

Further, in the case of the construction as shown in FIGS. 15 and 16, the operating device boxes Pb1 and Pb are provided on both sides in the depth direction.
There is a problem that the installation area of the gas insulated switchgear becomes large because it is necessary to arrange the b2 and secure a work space for operation on the side of each operator box.

An object of the present invention is to provide a gas insulated switchgear in which the depth dimension of the bus bar sorting unit can be made substantially the same as the depth dimension of the feeder unit without increasing the installation area. is there.

[0023]

According to the present invention, there is provided a gas-insulated switchgear including a first feeder unit Uf1, an upper busbar section unit Ubs1, an upper busbar connecting unit Uc1, a second feeder unit Uf2, and a second feeder unit Uf1. Bus section unit Ubs2,
The present invention relates to a gas-insulated switchgear provided with an Otsu bus connecting unit Uc2.

As shown in FIG. 2, the first feeder unit Uf1 is a main unit container 10 supported on a pedestal 21.
1 and an upper unit container 10 connected to the upper end of the main unit container
A first feeder circuit breaker CBf1 and a first feeder cable head CHD1 for connecting a cable to one end of the circuit breaker are housed in a main unit container 101 of a first feeder circuit breaker container Vf10. And a first feeder circuit breaker element F10, and an upper busbar conductor forming the upper busbar BUS1 in the first feeder upper busbar vessel Vf11 connected to the rear side of the upper unit vessel of the circuit breaker vessel Vf10. On the back side of the main unit container of the first feeder, the first feeder Kosama disconnector element F11 for accommodating the former bus disconnector DSf11 which opens and closes between the former bus conductor and the circuit breaker CBf1. Connected first feeder Otsubo container Vf12
Otsubus line disconnector DSf1 which opens and closes the Otsubus line conductor which forms Otsubus line BUS2 and the Otsubus line conductor and circuit breaker CBf1
2 has a first feeder O-bus disconnecting switch element F12 for housing the second feeder, and the other end of the circuit breaker CBf1 is for the first feeder via the connection conductor housed in the circuit breaker container. It is connected to the former bus disconnector element F11 and the second bus disconnector element F12.

The upper busbar section unit Ubs1 is a main unit container 101, and an upper unit container 102 and a lower unit container 103, which are connected to the upper and lower ends of the main unit container, respectively. Circuit breaker element B10 for classifying upper busbars in which a circuit breaker CBs1 for classifying upper busbars is housed in a unit container, and circuit breaker container Vb10 for classifying upper busbars
Of the upper busbar container Vb11 connected to the rear side of the upper unit container 102 of the above, the busbar conductor b11 on one side of the dividing point of the busbar bus BUS1, the busbar conductor and the circuit breaker C for dividing the upper busbar C
On the rear side of the upper busbar disconnecting switch element B11 for the upper busbar section, which houses the upper disconnector DS11 for the upper busbar section which opens and closes between Bs1 and the lower unit container 103 of the circuit breaker container Vb10 for the upper busbar section. The lower busbar section disconnector for opening and closing between the busbar conductor b12 on the other side of the partition point of the upper busbar and the busbar conductor and the circuit breaker CBs1 for the upper busbar section in the connected lower busbar container Vb12 for the upper busbar section And a lower busbar disconnecting switch element B12 for dividing the upper busbar, which accommodates the vessel DS12, and is arranged side by side with the first feeder unit Uf1.

The upper busbar connecting unit Uc1 is arranged on the rear side of the upper busbar section unit Ubs1 and the first feeder unit Uf1 and is for the busbar conductor b12 of the lower busbar disconnector element B12 for upper busbar section and the first feeder unit. The busbar disconnector element F11 is connected to the busbar conductor.

The second feeder unit Uf2 includes a pedestal 21.
′ A second feeder circuit breaker consisting of a main unit container 101 supported on the upper unit container and an upper unit container 102 connected to the upper end of the main unit container. A second feeder circuit breaker in the main unit container of the container Vf20. A second feeder circuit breaker element F20 containing CBf2 and a second feeder cable head CHD2 for connecting a cable to one end of the circuit breaker, and an upper unit container of the second feeder circuit breaker container Vf20 A second bus upper busbar container Vf21 connected to the rear side of the upper busbar conductor constituting the upper busbar BUS1 and the upper busbar disconnector for opening and closing between the upper busbar conductor and the second feeder circuit breaker CBf2 A second feeder upper busbar disconnector element F21 for accommodating the vessel DSf21, and a second feeder second busbar vessel Vf22 connected to the back side of the main unit vessel of the second feeder circuit breaker vessel Vf20. Otomo in O-bus conductor forming line BUS2, O-bus conductor and second circuit breaker C for feeder
It has a second feeder O-bus line disconnector element F22 for accommodating an O-bus line disconnector DSf22 for opening and closing with Bf2, and the other end of the second feeder circuit breaker CBf2 is the second. Is connected to the second feeder instep bus disconnector element F21 and the second bus disconnector element F22 through a connection conductor housed in the feeder circuit breaker container Vf22.

The O-busbar segmenting unit Ubs2 is a circuit breaker for O-busbar segmentation consisting of a main unit container and a lower unit container connected to the lower end of the main unit container. Circuit breaker element B20 for O-bus line classification and CBs2 and circuit breaker container Vb20 for O-bus line classification
Open and close between the busbar conductor b21 on one side of the division point of Obusbar BUS2 and the busbar conductor and the circuit breaker CBs2 for Obusbar division in the upper busbar container Vb21 for Otobus division connected to the back of the main unit container. For upper busbar disconnecting switch element B21 for Otobusbar classification, which contains the upper disconnector DS21 for Otobusifier, and for Otobus buster connecting to the rear side of the lower unit container 103 of the breaker container Vb20 for Otobusbar classification The lower busbar container Vb22 accommodates the busbar conductor b22 on the other side of the division point of the second busbar BUS2 and the lower disconnector DS22 for second busbar division which opens and closes between the busbar conductor and the circuit breaker CBs2 for second busbar division. And a lower busbar disconnecting switch element B22 for separating the O-bus, and is arranged side by side with the second feeder unit Uf2.

The O-bus connecting unit Uc2 is provided between the O-bus connecting unit Ubs2 and the second O-bus connecting unit Ubs2 between the bus conductor of the O-bus separating lower bus disconnector element B22 and the second upper feeder disconnecting switch F21. Connect on the rear side of the feeder unit Uf2.

The main unit containers of the circuit breaker container of each unit are formed to have the same size and are arranged at the same height. Also, the upper unit containers of the first and second feeder units are formed to have the same size as the upper unit container of the upper busbar section unit and are arranged at the same height, and are located under the upper busbar section unit and the lower busbar section unit. The unit containers are formed to have the same size and are arranged in spaces on the sides of the pedestals of the first and second feeder units, respectively.

The upper busbar disconnector element for the upper busbar section and the lower busbar disconnector element for the upper busbar section are directly connected to the side surface of the upper unit container and the side surface of the lower unit container of the breaker container for the upper busbar section, respectively. The upper busbar-side disconnector element and the O-busbar section lower busbar disconnector element are directly connected to the side surface of the upper unit container and the side surface of the lower unit container of the O-busbar section breaker container, respectively.

[0032]

As described above, the lower busbar disconnector element of the upper busbar section unit is directly connected to the side of the lower unit container of the circuit breaker container for upper busbar section through the insulating spacer, and the lower busbar disconnector of the Otobus section unit. If the element is constructed so that it is directly connected to the side of the lower unit container of the breaker container for O-bus line classification via an insulating spacer, the lower bus bar disconnector element of each bus bar segment unit projects further to the rear side than the rear face of the feeder unit. Never. Therefore, the distance between the disconnector of the lower busbar disconnector element of each busbar section unit and its operating device can be made shorter than before, and it is possible to prevent the operation of these disconnectors from becoming difficult. .

Further, with the above construction, not only each busbar segmenting unit can be arranged in a space having a width dimension of one unit, but also the operator box of each busbar segmenting unit can be arranged on one side. Therefore, it is possible to prevent the installation area of the gas insulated switchgear from increasing.

[0034]

1 to 7 show an embodiment of the present invention. FIG. 1 is a side view showing a state in which all of the basic components used for constituting each unit in this embodiment are incorporated. FIG. 3 is a side cross-sectional view showing a cross section along the line. 2 to 7 show an embodiment in which the present invention is applied to a gas-insulated switchgear having a two-line power receiving double bus structure having the structure shown in the single wire connection diagram shown in FIG. 3 is a side cross-sectional view showing a first feeder unit and an instep busbar section unit together with an instep busbar connecting unit, and FIG. 4 is a rear view of both units. 5 and 6 are side cross-sectional views showing the second feeder unit and the Otobus line segmenting unit together with the Otobus line connecting unit, and FIG. 7 is a rear view of both units.

In the present invention, each unit is constructed using standardized components as shown in FIG. In FIG. 1, reference numeral 1 denotes a container supported on an installation base 2 through a pedestal 3, and this container has a cylindrical portion 101a and a branch pipe portion 101 protruding from the side surface of the cylindrical portion toward the back side and the front side.
b and 101c, a main unit container 101 having a main portion container 101 having a cylindrical portion 102a and a branch pipe portion 102b projecting from the side surface of the cylindrical portion 102a to the back side.
An upper unit container 102 airtightly connected to the upper end of the container, and a lower unit container 103 having a cylindrical portion 103a and a branch pipe portion 103b protruding from the side surface of the cylindrical portion to the back side. Are arranged with their respective cylinders oriented vertically. In the present invention,
A circuit breaker container for accommodating the circuit breaker is configured by appropriately combining and using these containers 101 to 103 according to the configuration of the unit. FIG. 1 shows three containers 10
It shows a state in which the largest breaker container is configured by using all of 1 to 103.

The busbar container 4 can be connected to the branch pipe portions 101b, 102b and 103b on the back side of the containers 101 to 103, respectively. Bus container 4
Consists of a cross-shaped container having a vertical pipe portion 4A and a horizontal pipe portion 4B that are provided with their axes orthogonal to each other on a horizontal plane, and the flange at one end of each vertical pipe portion 4A is the container 10
1 to 103 are connected to the flanges of the branch pipe portions 101b to 103b in an airtight manner. Between each busbar container 4 and container 1,
An insulating spacer S is provided to divide the gas space in both containers. The busbar container 4 arranged at the lowermost portion is provided with the support 5
Supported by the installation base 2.

A vertically long rectangular parallelepiped operating device box 6 is arranged on the front side of the container 1, and the front end of the front side branch pipe portion 101c of the main unit container 101 is connected to the back surface of the operating device box 6. . The branch pipe portion 101c of the main unit container 101 is closed by a cover plate 7.

Regardless of which unit is configured, the three-phase circuit breaker CB is housed in the main unit container 101 in a state in which the circuit breakers CB are arranged in the horizontal direction (in the direction perpendicular to the paper surface of FIG. 1). . The circuit breaker CB of each phase has a breaking unit composed of a fixed contact, a movable contact and an appropriate arc extinguishing mechanism housed in the breaking unit container 8, and a terminal 8a connected to the fixed contact is provided at one end of the breaking unit container 8. A terminal 8b connected to the movable contact is provided on the side surface of the intermediate portion of the blocking portion container 8. The circuit breaker CB is arranged with the axis of the container 8 oriented horizontally and with its terminals 8b directed downward, and the other end of the container 8 is fixed to the lid plate 7 and supported by a cantilever. Has been done. The movable contact of the circuit breaker CB is provided so as to be linearly displaced in the axial direction of the container 8, and an insulating operation rod for operating the movable contact penetrates the cover plate 7 in a hermetically and slidably manner into the operator box 6. Has been introduced. An operation device for operating the circuit breaker CB and an operation mechanism for converting the rotation of the main shaft of the operation device into a linear motion are provided in the operation device box 6, and the main shaft of the operation device has a circuit breaker via the operation mechanism. It is connected to the insulated operating rod of the CB. The lid plate 7 for closing the branch pipe portion 101c of the main unit container 101 can be removed from the inside of the operating device box 6, and by removing the lid plate 7, the breaker CB is placed inside the operating device box 6. It can be pulled out.

Inside each busbar container 4, there are busbar conductors 9u to 9w forming a three-phase busbar, and a three-phase busbar disconnector DS for opening and closing between these busbar conductors and the three-phase circuit breaker CB. Is stored. The busbar conductors 9u to 9w are arranged with their respective axes directed in the axial direction of the lateral tube portion 4B of the busbar container 4 and arranged in a vertical direction. These busbar conductors are arranged in the lateral pipe of the busbar container. Both ends of the portion 4B are connected to and supported by a buried conductor of an insulating spacer attached so as to close both ends of the portion 4B.

Each busbar disconnector DS is mounted on a fixed contact 13 mounted on a support member 12 supported by an insulating support rod 11 on a flange plate 10 connected to a flange at one end of the vertical pipe portion 4A of the busbar container 4. And a movable contact 15 rotatably supported at one end of the embedded conductor 14 of the insulating spacer S attached to the flange plate 10. The three-phase disconnectors DS are arranged side by side in the horizontal direction (direction perpendicular to the plane of the drawing), and the rotary operation shaft for collectively operating the movable contacts 15 of these three-phase disconnectors is
It is led out to the outside through a bearing (not shown) having an airtight holding structure attached to the side wall of the vertical pipe portion 4A of the container 4. The operating shaft of the disconnecting switch DS, which is led out from the side wall of the vertical pipe portion of the container 4, is connected to the disconnecting switch operating device in the operating device box 6 via a connecting mechanism including a lever and a link.

In FIG. 1, in order to show all of the basic components used in the embodiment of the present invention, the main unit container 101, the upper unit container 102, and the lower unit container 103 are cut off by three unit containers. The container container 1 is configured to include the rear side branch pipe portion 101a of the main unit container 101, the rear side branch pipe portion 102a of the upper unit container 102, and the lower unit container 10
The busbar container 4 is connected to all of the rear side branch pipe portions 103a of the unit container 10 as described below.
1 to 103, only the main unit container 101 is always used regardless of the configuration of the unit, and the upper unit container 102 and the lower unit container 103 are either one or both depending on the configuration of the unit. Is used. Also, three busbar containers 4 are not used at the same time, and one busbar container 4 is connected to each of the upper and lower parts of the circuit breaker container 1. Main unit container 1 regardless of which unit is used
01 are arranged at the same height position.

The terminal 8a on one end side of the circuit breaker CB of each phase housed in the main unit container 101 is housed in the L-shaped connecting conductor 17 and the upper unit container 102 arranged in the main unit container 101. The L-shaped connecting conductor 18 connects the embedded conductor 14 of the insulating spacer S fixed to the flange plate 10 attached to the rear side branch pipe portion 102b of the upper unit container 102. Depending on the unit, the terminal 8a on one end side of the circuit breaker CB is attached to the rear side branch pipe portion 101b of the main unit container via the short connecting conductor 19 arranged in the main unit container 101. Is connected to the embedded conductor 14 of the insulating spacer S fixed to. The terminal 8b on the side surface of the circuit breaker CB is the main unit container 101.
And connected to the embedded conductor 14 of the insulating spacer S fixed to the flange plate 10 attached to the rear side branch pipe portion 103b of the lower unit container 103 via the crank-shaped connecting conductor 20 housed in the lower unit container 103. To be done.

The shape of each connecting conductor is not limited to the illustrated example, and a connecting conductor having an appropriate shape can be used if necessary.

Hereinafter, using the components shown in FIG.
An embodiment of the gas insulated switchgear shown in FIG. 2 will be described with reference to FIGS.

FIG. 2 shows the structure of the first feeder unit Uf1 used in this embodiment. In this unit, the main unit container 101 supported on the pedestal 21,
Upper unit container 1 connected to the upper end of the main unit container 101
A first feeder circuit breaker container Vf10 is constituted by 02, and a first feeder cable head CHD1 for connecting the first feeder circuit breaker CBf1 and the end of the cable L1 to the circuit breaker container Vf10 is connected. Conductors 17,18,1
9 and 22 are stored for three phases. The three-phase cables CHD1 are arranged with their centers located at the vertices of a triangle, and are attached downward to a bottom plate that closes the lower end of the main unit container 101. Connection conductor 22 between the circuit breaker CBf1
Connected through. The arrangement of devices other than the cable head CHD1 is the same as that shown in FIG. The height of the gantry 21 is set equal to the sum of the height of the lower unit container 103 and the height of the gantry 3 shown in FIG. In this example, the circuit breaker container Vf10 and the equipment housed therein form a first feeder circuit breaker element F10.

One end of the vertical pipe portion 4A of the busbar container 4 is connected to the rear side branch pipe portion 102b of the upper unit container 102 of the circuit breaker container Vf10 and the rear side branch pipe portion 101b of the main unit container 101, respectively. By the busbar container 4 connected to 102b and 101b, respectively, the first feeder instep busbar container Vf11 and the first feeder inset busbar container Vf12.
Is configured. Bus container Vf12 arranged on the lower side
Are supported by columns 25.

In the first feeder upper busbar container Vf11, three-phase busbar conductors 9u to 9w constituting the upper busbar BUS1 are provided.
An (A bus bus conductor) and an A bus bus disconnector DSf11 that opens and closes between the A bus conductor and the circuit breaker CBf1 are housed. The arrangement of these devices is the same as that shown in FIG. Further, in this example, the insulating spacer S is attached to the cover plate that closes the other end of the vertical pipe portion 4A of the busbar container Vf11, and the three-phase embedded conductor 23 provided in the insulating spacer is the three-phase busbar conductors 9u to 9w. It is connected to the. Bus container Vf1
1 and the equipment housed therein form a first feeder bus disconnector disconnecting element FF11.

In the first feeder O-bus container Vf12, the bus conductors 9u to 9w (O-bus conductor) forming the O-bus BUS2 and the O-bus line for opening and closing between the O-bus conductor and the circuit breaker CBf1. The disconnector DSf12 is housed, and the first feeder O-bus line container Vf12 and the equipment housed therein form a first feeder O-bus line disconnector element F12.

An operator box Pf1 is arranged in front of the first feeder circuit breaker element F10, and the circuit breaker CBf1 and the switches DSf11 and DSf12 are arranged in the operator box. Circuit breaker element F10 for the first feeder
With the first feeder upper busbar disconnecting switch element F11, the first feeder second busbar disconnecting switch element F12, the operating device box Pf1, and the operating devices housed in the operating device box, The feeder unit Uf1 of is configured.

Next to the first feeder unit Uf1, the upper busbar section unit Ubs1 shown in FIG. 3 is arranged. Main unit container 1
01 and an upper unit container 102 and a lower unit container 103 which are connected to the upper and lower ends of the main unit container, respectively, constitute an upper busbar section breaker container Vb10. CBs1 and connecting conductor 1
7, 18 and 20 are accommodated to form an upper busbar section breaker element B10.

The busbar container 4 constituting the upper busbar container Vb11 for the upper busbar section is connected to the rear side branch pipe portion 102b of the upper unit container 102 of the circuit breaker container Vb10 for the upper busbar section,
The busbar container accommodates a busbar conductor b11 on one side of the dividing point of the busbar BUS1 and an upper disconnector for disconnecting busbars DS11 for opening and closing between the busbar conductor and the circuit breaker for dividing busbar CBs1. . The upper busbar disconnecting switch element B11 for separating the upper busbars by the busbar container Vb10 and the equipment housed therein.
Is configured.

Further, a bus bar container 4 constituting a lower bus bar container Vb12 for shell bus bar division is connected to the rear side branch pipe portion 103b of the lower unit container 103 of the circuit breaker container Vb10 for shell bus line division, and in this bus bar container, Lower busbar section disconnecting switch DS12 for opening and closing between the busbar conductor b12 on the other side of the dividing point of the upper busbar BUS1 and the busbar conductor and the circuit breaker CBs1 for upper busbar section
And are stored. Lower busbar container Vb12 for instep busbar division
An insulating spacer S is attached to a cover plate that closes the other end of
Three-phase embedded conductor 26 provided on the insulating spacer S
Are connected to the three-phase bus conductor b12. Bus container Vb1
The lower busbar disconnecting switch element B12 for separating the upper busbars is constituted by 2 and the equipment housed therein. An actuator box Pb1 is arranged in front of the breaker element B10 for breaker bus, and the breaker element B10 for breaker bus line, the upper busbar disconnector element B11 for breaker busbar section, and the lower busbar breaker element for breaker busbar element B12, the operation device box Pb1, and the operation devices housed in the operation device box constitute an instep busbar section unit Ubs1.

On the back side of the first feeder unit Uf1 and the instep busbar section unit Ubs1, an instep busbar connecting unit Uc1 configured as shown in FIGS. 3 and 4 is arranged. The container Vc1 of the upper busbar connecting unit Uc1 is arranged in front of the lower busbar container Vb12 for dividing the upper busbar and is supported by the installation base 2 via the pedestal 30 to form the first unit container 31.
A, a second unit container 31B arranged in front of the gantry 21 of the first feeder unit and supported on the installation base 2 via the gantry 32, and connected to the upper ends of the second unit containers 31B. 3rd unit container 31C and 3rd unit container 3
The fourth unit container 31D connected to the upper end of 1C is configured to have an L shape when viewed from the back side. The branch pipe portion 31a provided on the front surface side of the first unit container 31A is the vertical pipe portion 4 of the lower busbar container Vb12 for separating the upper busbars.
The branch pipe portion 31b, which is connected to the tip of A and is provided on the front surface of the fourth unit container 31D, includes the first feeder unit U.
It is connected to the tip of the vertical pipe portion 4A of the upper bus container Vf11 of f1.

First unit container 31A and second unit container 3
1B, the second unit container 31B and the third unit container 3
1C, the third unit container 31C and the fourth unit container 3
Insulating spacers S are provided so as to separate gas from 1D, and these first to fourth unit containers 31A are provided.
To 31D in the first to fourth connection conductors 3 respectively
5A to 35D are stored. These connection conductors 35A to 35D are connected in series with each other via embedded conductors of the insulating spacer S provided between the unit containers, and the connection conductors 35A to 35D are connected in series with each other.
The lower busbar container Vb1 of the upper busbar division unit Ubs1
Between the three-phase embedded conductor 26 of the insulating spacer S attached to the tip of 2 and the embedded conductor 23 of the insulating spacer S attached to the tip of the vertical tube portion of the upper busbar container Vf11 of the first feeder unit Uf1. Are connected. Container Vc1 including first to fourth unit containers 31A to 31D
And the connecting conductors 35A to 35D housed in the container, the busbar conductor of the lower busbar disconnecting switch element B12 for the upper busbar section and the first busbar disconnecting switch element F11 for the feeder.
Between the busbar conductor of the first and second busbar section unit Ubs1 and the first
An upper busbar connecting unit Uc1 to be connected on the back side of the feeder unit Uf1 is constructed.

In FIGS. 3 and 4, Vb14 is Otobus BU
This is a tubular passage busbar container that accommodates the busbar conductors constituting S2, and this passage busbar container Vb14 is an instep busbar section unit Ubs.
1 is connected to the Otsu bus container of the unit located on both sides. The passing busbar container Vb14 and the busbar conductor arranged inside the passing busbar container Vb14 form a passing busbar that passes through the portion of the upper busbar section unit Ubs1.

As shown in FIG. 5, in the second feeder unit Uf2, the main unit container 101 supported on the pedestal 21 'and the upper unit container 102 connected to the upper end of the main unit container 101 are used. A second feeder circuit breaker container Vf20 is constructed, and a second feeder circuit breaker CBf2, a second feeder cable head CHD2 for connecting the end portion of the cable L2, and a connecting conductor are formed in the circuit breaker container Vf20. Circuit breaker element F20 is constructed by accommodating three phases 17, 18, 19 and 22. The arrangement of devices in the circuit breaker element F20 is similar to that in the circuit breaker element F10 of the first feeder unit Uf2.

One end of the vertical pipe portion 4A of the busbar container 4 is connected to the rear side branch pipe portion 102b of the upper unit container 102 of the circuit breaker container Vf20 and the rear side branch pipe portion 101b of the main unit container 101, respectively. By the busbar container 4 respectively connected to 102b and 101b, the second feeder instep busbar container Vf21 and the second feeder O-busbar container Vf22.
Is configured. Bus container Vf22 arranged on the lower side
Are supported by columns 25 '. A bus line BUS1 is formed in the second feeder bus line container Vf21 3
Phase busbar conductors 9u to 9w (instep busbar conductors) and instep busbar disconnector D for opening and closing between these instep busbar conductors and breaker CBf2
Sf21 and are stored. A second feeder A / B bus disconnector element F21 for feeders is constituted by the A / V bus container Vf21 and the equipment housed therein.

In the second feeder O-bus container Vf22, the bus conductors 9u to 9w (O-bus conductor) forming the O-bus BUS2 and the O-bus line for opening and closing between the O-bus conductor and the circuit breaker CBf2 are provided. The disconnector DSf22 is housed, and the second feeder O-bus line container Vf22 and the equipment housed therein form a second feeder O-bus line disconnector element F22. An insulating spacer S is attached to a cover plate that closes the other end of the vertical pipe portion 4A of the Otsubus container Vf22, and the three-phase embedded conductor 23 'provided on the insulating spacer is connected to the three-phase bus conductors 9u to 9w. ing.

An operator box Pf2 is arranged in front of the second feeder circuit breaker element F20, and the operator of the circuit breaker CBf2 and the operators of the disconnectors DSf21 and DSf22 are arranged in the operator box. There is. Second feeder circuit breaker element F20, second feeder instep busbar disconnector element F21, and second feeder O-busbar disconnector element F22
The second feeder unit Uf2 is constituted by the operating device box Pf2 and the operating devices housed in the operating device box.

Next to the second feeder unit Uf2, the O-bus line section unit Ubs2 shown in FIG. 6 is arranged. In this Otobus line section unit, main unit container 1
01 and the lower unit container 1 connected to the lower end of the main unit container
O and busbar section breaker container Vb20 is composed of 03 and Otto bus section breaker CB.
The s2 and the connecting conductor 20 are accommodated to form a breaker element B20 for dividing the O-bus.

A bus bar container 4 constituting an upper bus bar container for V-bus line classification Vb21 is connected to the rear side branch pipe portion 101b of the main unit container 101 of the circuit breaker container for V-bus line classification Vb20, and the second line is connected to the inside of the bus bar container. The busbar conductor b21 on one side of the dividing point of the busbar BUS2 and the upper busbar-dividing upper disconnector DS21 for opening and closing between the busbar conductor and the O-busbar-dividing circuit breaker CBs2 are housed. The busbar container Vb21 and the equipment housed therein constitute an upper busbar disconnecting switch element B21 for O-busbar classification.

Further, the busbar container 4 constituting the lower busbar container Vb22 for Otobusbar division is connected to the rear side branch pipe portion 103b of the lower unit container 103 of the circuit breaker container Vb20 for Otobusbus division, and in this busbar container, The lower disconnector DS22 for the O-bus line section which opens and closes between the bus conductor b22 on the other side of the O-bus line BUS2 and the bus conductor and the circuit breaker CBs2 for the O-bus line
And are stored. Lower busbar container Vb22 for Otsu bus division
An insulating spacer S is attached to a cover plate that closes the other end of the vertical tube portion, and the three-phase embedded conductor 26 'provided in the insulating spacer S is connected to the three-phase bus conductor b22. The busbar container Vb22 and the equipment housed therein form a lower busbar disconnector element B22 for O-busbar sectioning. The controller box Pb2 is placed in front of the breaker element B20 for breaker line division, and the breaker element B20 for breaker line breaker is arranged.
, An upper busbar disconnecting switch element B21 for Otobusbar section, a lower busbar disconnecting switch element B22 for Otobusbar section, an operating device box Pb2, and operating devices housed in the operating device box.
Otsubus section unit Ubs2 is configured.

On the rear side of the second feeder unit Uf2 and the second bus line section unit Ubs2, the second bus line connecting unit Uc2 configured as shown in FIGS. 6 and 7 is arranged. The container Vc2 of the Otobus connecting unit Uc2 is the first unit container 3 which is arranged in front of the Otobus line dividing lower busbar container Vb22 and supported by the installation base 2 via the mount 30 '.
1A ', a second unit container 31B' disposed in front of the mount 21 'of the second feeder unit Uf2 and supported on the installation base 2 via the mount 32', and a second unit container 31B '. The third unit container 31C 'connected to the upper end of the second unit container 31C' is configured to have an L-shape when viewed from the back side. A branch pipe portion 31a '(see FIG. 6) provided on the front surface side of the first unit container 31A' is connected to the tip of the vertical pipe portion 4A of the lower busbar container Vb22 for O-busbar section, and the third unit container 31C. The branch pipe portion 31b ′ provided on the front surface of the ‘
The second feeder unit Uf2 is connected to the tip of the vertical tube portion 4A of the Otsubus container Vf22.

Insulating spacers S are provided so as to separate gas between the first unit container 31A 'and the second unit container 31B' and between the second unit container 31B 'and the third unit container 31C'. Are provided, and the first to third connection conductors 35A 'to 35C' are housed in the first to third unit containers 31A 'to 31C', respectively. These connecting conductors 35A 'to 35C' are connected in series with each other via embedded conductors of the insulating spacer S provided between the unit containers, and the connecting conductors 35A 'to 35C' are connected in series to each other. A three-phase embedded conductor 26 'of an insulating spacer S attached to the tip of the lower busbar container Vb22 of the busbar section unit Ubs2;
Embedded conductor 23 of the insulating spacer S attached to the end of the vertical pipe portion of the V-bus container Vf22 of the feeder unit Uf2 of
It is connected to ´. By the container Vc2 including the first to third unit containers 31A 'to 31C' and the connecting conductors 35A 'to 35C' housed in the container, a busbar conductor of the lower busbar disconnecting switch element B22 for O-busbar sectioning is obtained. Second
The O-bus line connecting unit Uc2 that connects the O-bus line disconnecting switch element F22 for the feeder with the bus line conductor of the O-bus line dividing unit Ubs2 and the rear side of the second feeder unit Uf2.
Is configured.

In FIG. 6, V24 is a tubular passage busbar container accommodating the busbar conductors forming the upper busbar BUS1, and this passage busbar container Vb24 is connected to the former busbar containers of the units arranged on both sides of the O-busbar section unit Ubs2. Has been done. The passing busbar Vb24 and the busbar conductor arranged inside the passing busbar container Vb24 form a passing busbar that passes through a portion of the second busbar section unit Ubs2.

As in the above-described embodiment, the upper busbar disconnecting switch element B11 for the upper busbar section and the lower busbar disconnecting switch element B12 for the upper busbar section are respectively provided in the breaker container V for the upper busbar section.
The side of the upper unit container 102 of b10 and the lower unit container 10
3 is directly connected to the side surface of 3 through the insulating spacer S, and the upper busbar side disconnecting switch element B21 for Otobusbar section and the lower busbar disconnecting switch element B22 for Otobusbar section are respectively the upper unit container 102 of the breaker container Vb11 for Otokobus section. When directly connected to the side surface of the lower unit container 103 and the side surface of the lower unit container 103 through the insulating spacer S, the lower busbar disconnecting switch elements B12 and B22 are arranged below the upper busbar disconnecting switch elements B11 and B21, respectively. The depth dimension can be made substantially equal to the depth dimension of the feeder unit.
Therefore, the connecting rods for connecting the disconnectors DS12 and DS22 of the busbar disconnector element on the lower side of each busbar section unit and the respective operating devices can be made shorter than before, and the operation of these disconnectors can be made easier. You can prevent it from becoming difficult. Further, not only can the bus bar segmenting units Ubs1 and Ubs2 be arranged in a space having a width dimension of one unit, but the operator box can be arranged on one side, increasing the installation area of the gas insulated switchgear. Can be prevented.

In the above embodiment, the current transformer CT shown in FIGS. 9 and 13 is not provided, but in the present invention,
If necessary, a current transformer corresponding to the current transformer CT shown in FIGS. 9 and 13 can be provided in the container of the upper bus connecting unit Uc1 and the second bus connecting unit Uc2.

In the above embodiment, the first and second feeder units, the instep bus section dividing unit and the O-bus line dividing unit are provided. However, in the present invention, other units such as a transformer connecting unit may be provided. Further provision is not hindered.

In the above embodiment, the busbar disconnector DS
A 2-position switch in which the movable contact 15 is displaced between a closed position and an open position was used as 11, DS12, DS21, and DS22. As the disconnectors, the movable contact has a closed position, an open position, and a grounded position. It is also possible to use a three-position switch that displaces in three positions.

[0070]

As described above, according to the present invention, the busbar disconnector element provided in the lower portion of the upper busbar section unit is directly connected to the lower side surface of the circuit breaker container of the upper busbar section unit, and the lower part of the second busbar section unit is connected. Since the busbar disconnector element provided in is directly connected to the lower side surface of the circuit breaker container of the O-busbar section unit, the depth dimension of the busbar section unit can be made substantially equal to the depth dimension of the feeder unit. Therefore, the distance between the disconnector of the busbar disconnector element in the lower part of the busbar section unit and its operating device can be made shorter than before, and the operation of these disconnectors can be prevented from becoming difficult. There are advantages.

Further, according to the present invention, not only can each bus bar segmenting unit be arranged in a space having a width dimension of one unit, but also the operator box of each bus bar segmenting unit can be arranged on one side. It is possible to prevent the installation area of the gas insulated switchgear from increasing.

[Brief description of drawings]

FIG. 1 is a side cross-sectional view showing a state in which all basic components used in an embodiment of the present invention are incorporated.

FIG. 2 is a side sectional view showing a configuration of a first feeder unit used in an embodiment of the present invention.

FIG. 3 is a side sectional view showing an instep busbar segmenting unit and a part of the instep busbar connecting unit used in the embodiment of the present invention.

FIG. 4 is a rear view showing a first feeder unit, an instep busbar sectioning unit, and an instep busbar connecting unit used in the embodiment of the present invention.

FIG. 5 is a side sectional view showing a second feeder unit used in the embodiment of the present invention.

FIG. 6 is a side cross-sectional view showing the Otokobus section unit and a part of the Otokobus connection unit used in the embodiment of the present invention.

FIG. 7 is a rear view showing a second feeder unit, an O-bus line dividing unit, and an O-bus line connecting unit used in the embodiment of the present invention.

FIG. 8 is a single wire connection diagram showing a configuration example of a main part of a gas insulated switchgear targeted by the present invention.

FIG. 9 is a side sectional view of an instep busbar section unit used in a conventional gas insulated switchgear.

FIG. 10 is a side sectional view showing a first feeder unit and an instep busbar connecting unit used in a conventional gas insulated switchgear.

FIG. 11 is a rear view showing a first feeder unit, an instep busbar section unit, and an instep busbar connection unit used in a conventional gas insulation device.

FIG. 12 is a side sectional view showing a second feeder unit and an Otobus connecting unit used in a conventional gas insulated switchgear.

FIG. 13 is a side cross-sectional view showing an Otobus line segmenting unit and an Otobus line connecting unit used in a conventional gas insulated switchgear.

FIG. 14 is a rear view showing a first feeder unit, an O-bus line sorting unit, and an O-bus line connecting unit used in a conventional gas-insulated switchgear.

FIG. 15 is a side sectional view showing the configuration of another bus bar segmenting unit used in the conventional gas insulated switchgear.

16 is a top view of the bus bar segmenting unit of FIG. 15. FIG.

[Explanation of symbols]

 101 main unit container 102 upper unit container 103 lower unit container 4 busbar container 17 to 20 connecting conductor Uf1 first feeder unit Vf10 first feeder circuit breaker container CBf1 first feeder circuit breaker F10 first feeder circuit breaker Element F11 First feeder upper busbar disconnector element Vf11 First feeder upper busbar container DSf11 First feeder upper busbar disconnector Ubs1 Upper busbar section unit Vb10 Upper busbar section breaker container CBs1 Upper busbar section Circuit breaker B10 Circuit breaker element for A / B bus division Vb11 Upper bus bar container for A / B bus section DS11 Upper bus bar disconnector for B / B bus section B11 Upper bus bar disconnector element for A / B bus section Vb12 Lower bus bar container for A / B bus section DS12 For A / B bus line classification Lower disconnector B12 Lower busbar disconnector element for upper busbar section Uc1 Upper busbar connecting unit Uf2 Second filter Da unit Vf20 Second feeder circuit breaker container F21 Second feeder instep busbar disconnector element Vf21 Second feeder instep busbar container DSf21 Second feeder instep busbar disconnector Ubs2 Otobus line section unit Vb20 Otobus line segment Circuit breaker container CBs2 Circuit breaker for O-bus line classification B20 Circuit breaker element for O-bus line classification Vb21 Upper bus bar container for O-bus line classification DS21 Upper circuit breaker element for O-bus line classification B21 Upper bus line circuit breaker element for O-bus line classification Vb22 Lower line for O-bus line classification Busbar container DS22 Lower disconnector for Otobus section B22 Lower disconnector element for Otobus section Uc2 Otobus connection unit

Claims (1)

[Claims] 1. A first unit comprising a main unit container supported on a gantry and an upper unit container connected to an upper end of the main unit container.
A first feeder circuit breaker in the main unit container of the feeder circuit breaker container and a cable connected to one end of the circuit breaker;
And a first feeder circuit breaker element containing the feeder cable head, and an instep busbar in the first feeder instep busbar container connected to the back side of the upper unit container of the circuit breaker container. And a backside of a main unit container of the circuit breaker, and a first feeder upper busbar disconnector element for accommodating an upper busbar conductor and an upper busbar disconnector that opens and closes between the upper busbar conductor and the circuit breaker The first O-bus bus container for the feeder and the O-bus bus conductor constituting the O-bus line and the O-bus line disconnector for opening and closing between the O-bus line conductor and the circuit breaker are housed in the first feeder O-bus line container connected to the first side. A feeder O-bus line disconnector element, and the other end of the circuit breaker via a connecting conductor housed in the circuit-breaker container, the first feeder upper bus line disconnector element and O-bus line disconnector The first flap connected to the element Circuit breaker consisting of a master unit, a main unit container, and an upper unit container and a lower unit container connected to the upper and lower ends of the main unit container, respectively. An upper busbar section breaker element that is housed and an upper busbar section upper busbar container connected to the back side of the upper unit container of the upper busbar section breaker container. Upper busbar disconnecting upper busbar disconnecting switch element for accommodating an upper busbar disconnecting upper disconnector for opening and closing between a conductor and the busbar conductor and the upper busbar disconnecting circuit breaker, and the upper busbar disconnecting breaker container In the lower busbar section for lower busbar section connected to the rear side of the lower unit container, the busbar conductor on the other side of the dividing point of the upper busbar and the busbar conductor and the circuit breaker for the upper busbar section are opened and closed. Holds the lower disconnector for the Koji bus line classification A lower busbar disconnecting element for the upper busbar section, which is arranged side by side with the first feeder unit, and a busbar conductor of the lower busbar disconnecting switch element for the upper busbar section and the first feeder unit. An upper busbar connecting unit connecting the upper busbar disconnecting unit element for the feeder and the busbar conductor of the feeder on the rear side of the first busbar unit, a main unit container supported on the mount, and the main unit container A second feeder circuit breaker in the main unit container of the second feeder circuit breaker container consisting of the upper unit container connected to the upper end of the second feeder circuit and the second feeder cable for connecting the cable to one end of the circuit breaker A second feeder circuit breaker element containing a head, and a second feeder instep busbar connected to the rear side of the upper unit container of the second feeder circuit breaker container. A second feeder upper busbar disconnector element which accommodates an upper busbar conductor constituting an upper busbar and an upper busbar disconnector which opens and closes between the upper busbar conductor and the second circuit breaker in the container And an O-bus line conductor constituting the O-bus line in the second feeder O-bus line container connected to the rear side of the main unit container of the second feeder circuit breaker container, and the O-bus line conductor and the second line. A second feeder O-bus disconnector element for accommodating an O-bus disconnector that opens and closes between the feeder circuit breaker and the other end of the second feeder circuit-breaker; Second feeder unit connected to the second feeder instep bus disconnecting switch element and the second bus disconnecting switch element via a connecting conductor housed in the feeder circuit breaker container, a main unit container and the main unit container Lower unit connected to the bottom of the unit container The main unit of the breaker container for O-bus line classification consisting of the container and the breaker element for O-bus line classification that contains the breaker for O-bus line classification and the main unit container of the breaker container for O-bus line classification. Inside the O-bus line segmenting upper bus bar container connected to the rear side, there is a bus line conductor on one side of the O-bus line segmenting point and an O-bus line segmenting upper disconnector that opens and closes between the bus line conductor and the O-bus line segmenting circuit breaker. The upper busbar disconnector element for O-busbar classification to be stored, and the O-busbar separation point inside the O-busbar classification lower busbar container connected to the rear side of the lower unit container of the O-busbar classification circuit breaker container A busbar conductor on the side of and a lower busbar disconnecting switch element for Otobusbar classification that accommodates a lower disconnector for Otobusbar classification that opens and closes between the busbar conductor and the circuit breaker for Otobusbar separation. Otomobus lined up with 2 feeder units On the rear side of the O-busbar section unit and the second feeder unit between the busbar conductor of the second busbar section lower busbar disconnector element and the busbar conductor of the second feeder upper busbar disconnector element. The main unit container of the circuit breaker container of each unit is formed in the same size and arranged at the same height, and the upper unit of the first and second feeder units. The container is formed in the same size as the upper unit container of the upper busbar section unit and arranged at the same height, and the lower unit container of the upper busbar section unit and the lower busbar section unit is formed in the same size and The upper busbar disconnecting switch element for the upper busbar section and the lower busbar disconnecting section for the upper busbar section are respectively arranged in spaces on the sides of the mounts of the first and second feeder units. The device elements are directly connected to the side surface of the upper unit container and the side surface of the lower unit container of the circuit breaker container for upper busbar section, respectively, and the upper busbar side disconnector element for O-busbar section and the lower busbar disconnector element for O-busbar section are respectively A gas-insulated switchgear which is directly connected to a side surface of an upper unit container and a side surface of a lower unit container of the circuit breaker container for dividing the Otobus.